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| Item | Specification |
|---|---|
| Part Number | 57467474 |
| Product Name | Idler Assembly / Front Idler |
| Product Type | Undercarriage Component |
| Compatible Machine Models | Atlas Copco DMM3 Drilling Rig / Epiroc (ITM Series) |
| Single Weight | 330 kgs (727.5 lbs) |
| Material | High-strength alloy steel, induction-hardened tread surface |
| Sealing Type | Floating / Duo-cone seals for contamination protection |
| Application | Guides and maintains proper tension of the track chain |
| Industry Focus | Underground Mining, Tunneling, Drilling Operations |
Atlas Copco 57467474 idler
DMM3 front idler assembly
Epiroc DMM3 undercarriage parts
DMM3 track idler
330 kg idler for DMM3
Replacement idler for DMM3 drilling rig
ITM DMM3 idler assembly
The Atlas Copco 57467474 Idler Assembly (Front Idler) is a genuine OEM-specification undercarriage component designed for the Atlas Copco DMM3 drilling rig (now under Epiroc). This idler is a critical component that guides the track chain and maintains proper track tension at the front of the undercarriage.
The DMM3 is a versatile drilling rig used in underground mining for production drilling, bolting, and ground support applications. The idler features a precision-machined tread surface with induction hardening for maximum wear resistance. Advanced floating seals prevent contamination and retain lubrication, ensuring extended service life in severe underground mining conditions.
| Feature | Benefit |
|---|---|
| Induction-Hardened Tread Surface | Exceptional wear resistance in abrasive mining conditions |
| Floating / Duo-Cone Seals | Prevents contamination and retains lubrication for extended life |
| High-Strength Alloy Steel | Maximum durability for demanding underground applications |
| Precision Bearings | Smooth rotation with minimal friction |
| DMM3 Optimized | Specifically engineered for Atlas Copco/Epiroc DMM3 drilling rig |
| Direct OEM Replacement | Guaranteed fit and performance |
| Specification | Detail |
|---|---|
| Machine Model | Atlas Copco DMM3 / Epiroc DMM3 |
| Series | ITM (Intelligent Tunnel & Mining) |
| Machine Type | Underground drilling rig |
| Position | Front idler |
| Component | Part Number | Description |
|---|---|---|
| Track Assembly | 58257753 | Complete track assembly (4,992 kg) |
| Bottom Roller | 57467532 / A0150000M00U | Single flange roller (88 kg) |
| Top Roller | 57467516 / C0150100M00U | Carrier roller (52 kg) |
| Sprocket | 2657467151 | Drive sprocket (34 holes) |
Position: This is a front idler - do not use in other positions
Lifting Requirement: Due to weight (330 kg), specialized lifting equipment is required
Bolt Torque: Follow OEM specifications for mounting bolt torque
Track Tension: The idler works with the tensioner to maintain proper track sag
Regular Inspection: Check for tread wear, seal damage, and bearing play periodically
Replacement: Replace when tread wear exceeds OEM specifications or when seal failure occurs
| Condition | Action |
|---|---|
| New tread - sharp profile | Normal operation |
| Moderate tread wear | Monitor regularly |
| Excessive tread wear (flat spots) | Replace idler |
| Seal leakage | Replace idler immediately |
| Bearing play | Replace idler |
| Item | Detail |
|---|---|
| Part Number | 57467474 |
| Type | Idler Assembly / Front Idler |
| Weight | 330 kg per piece |
| Compatibility | Atlas Copco DMM3 / Epiroc DMM3 |
| Packaging | Individual crate |
Note: This is a front idler assembly for the Atlas Copco/Epiroc DMM3 drilling rig. Due to its significant weight (330 kg), specialized heavy lifting equipment and professional installation are required. Verify machine serial number and undercarriage configuration before ordering. Regular inspection of the idler tread and seals is essential for optimal undercarriage performance.
